your user-dirs.dirs file is corrupted...either use wook's file to replace yours or using nano make the following changes:

the Download line should read: "$HOME/MyDocs/Downloads"
Documents line: "$HOME/MyDocs/Documents"
Music line: "$HOME/MyDocs/Music"
Pictures line: "$HOME/MyDocs/Pictures"
Videos line: "$HOME/MyDocs/Videos"


the files to be deleted are from /home/user/

user terminal or filebox to delete them...